Leather-finishing machine.



A. G. FILMER. LEATHER FINISHING MACHINE.

APPLIUATION FILED AUG.29, 1908.

920,304. Patented May 4, 1909.

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Invention Arthur 6: Fllmer.

1n: uomzu Pl Til; cm. waswmwqu. D. C.

A. G. FILMER.

LEATHER FINISHING MACHINE.

APPLICATION IILED AUG.29, 1908. 920,304 Patented May 4, 1909.

2 SHEETS-SHEET 2.

lnvenor. Arthur G: Filmer. WW4. 5 m AfC y.

THE NORRIS FITIRS CO. WAIIIINGWN, D- C.

\llnesses UNITED PATENT QFFTCE.

i ARTHUR G. FlLMlll-t, NEW YORli.

LEATHER-FINISHING MACHINE.

Specification of Letters Patent.

Application filed August 29, 1908. Serial No. 450,899.

No. 920,304. Patented May 4, 1909.

chine shown in Fig. 1 is old and well-known, and the novelty of the present invention resides particularly in the work-bed, whereby the skin or hide is held against the reciprocating tool 7.

My improved work-bed comprises a base 16 of well seasoned hard wood, longitudinally grooved to receive a steel trunnion 17. The latter supports a bed 18, preferably of tough fibrous wood, carrying a smooth iron bedplate 19. This bed-plate 19 is permanently secured to the wooden bed 18 by two rows of screw bolts 20 having nuts 21 countersunk into the )rojecting or under-cut edges of the bed, as shown in Fig. 4. These bolts 20 are, however, long enough to extend down through and lock with rectangular iron strips 22 and 23 running along the upper edges of the base 16. The strips are rigidly secured to the base by bolts 24 (see Fig. 2 Blank nuts 25 serve as spacers to hold these strips well above the surface of base 16, thereby permitting easy manipulation of nuts 26 and 27, whereby the screw bolts 20 are locked to the strips. The base 16 is provided at its front or upper end with a lifting-jack 2S and with two anchoring bolts 29 and 30, all carried by a heavy block 31, which is cut away To all whom it may concern:

Be it known that I, ARTHUR G. FiLnmn, a citizen of the United States, residing at Gloversville, in the county of Fulton, State of New York, have invented certain new and useful Improvements in Leather-Finishing Machines, of which the following is a spec-iiication.

My present invention relates to machines used for glazing, rolling, pebbling or glassing skins and leather.

The object of my invention is to provide certain improvements in machines of this character whereby the output of the machine may be increased, and whereby the liability of tearing and ruining skins and leather may be greatly diminished.

To this end, my invention comprises an improved work-bed for holding the skins or leather during treatment, this worlebed being so constructed and arranged as to insure a uniform and even pressure of the glazing or rolling tool throughout the entire stroke of the rocker arm of the machine.

The characteristic features of my invention will be better understood by reference to the accompanying drawings, wherein Figure 1 is a side elevation of a complete machine equipped with my improved workbed; Fig. 2 is a side elevation of the workbed; Fig. 3 is a plan view of the same; and Figs. 4 and 5 are respectively front and rear end elevations of the bed.

The framework of the glazing or rolling machine comprises suitable uprights 1 and 2 supporting a tread 3, on which runs a rocker 4 carrying a rocker-arm 5. The end of this rocker-arm 5 is pivotally connected with a tool carriage 6, at the lower end of which the glazing or rolling cylinder 7 is suitably mounted. A pitman 8, rigidly connected with said tool carriage, engages with a crankpin 9 carried near the periphery of a wheel 10, driven at uniform speed as by a belt on a pulley 11. The elements above mentioned are so related that when wheel 10 revolves the tool 7 is caused to travel along a workbed with a substantially straight-line motion during the down stroke, but moves upward through a curved path during the return stroke. Suitable springs 12 and 13, acting through a link 14, hold the rocker 4 firmly against its tread 3. A resilient member 15 anchors the rocker 4 to the tread 3 and prevents displacement. So much of the ma- 33. The anchoring bolts 29 and 30 engage with a steel bar 3 running through the base 16, and they serve not only as anchors, but also as means for tilting the base with respect to the block 31. At the other end of the base 16 is a second jack 35 passing through and supported by a second block 36. Anchoring means is also provided, consisting of a bolt 37 having an eye let into a recess in base 16 and engaging with a transverse steel bar 38. Anchor 37 and jack 35 lie in line along the axis of the bed and so do not interfere with the tilting operation as effected by anchors 29 and 30 at the other end of the base.

The utility of the inclined surfaces on blocks 31 and 36 will be ap arent by reference to Fig. 1. Beneath the base 16 is a movable frame 39 actuated by a crank 10 attached to a screw-shaft 41. This frame 39 has inclined surfaces for engagement with those on the blocks. By turning the crank the entire work-bed can be raised or lowered and thereby adjusted with respect to the thickness of the skin, or the degree of pressure to be applied b the working tool. It will be understood t at the skin to be opernear its ends to form inclined surfaces 32 and I ment of tool 7. A leather strap 42 may be stretched lengthwise along the bed-plate to form a suitable working surface, being held taut by aT-plate 43 let into a slot in the bed 18 and adjusted by means of a screw 44 engaging with the end of trunnion 17.

From a consideration of the method of securing bed 18 to base 16 it will be seen that by proper adjustment of the nuts on bolts 20, it is possible to tilt the bed about trunnion 17 and so change the angle of the work surface with respect to the path of the rolling or glazing tool. But furthermore, by tightening some bolts more than others it is possi ble to twist and bend the bed 18 and bedplate 19 in irregular manner, and so produce a warped surface on which the working tool may run. The particular advantage of this arises from the fact that in most machines of this type the rolling or glazing tool does notrun in a perfectly straight line, and the skins on the Work-bed do not receive uniform treatment throughout. If the pressure is just right at one point it may be too little or too much at another, and the skin comes out either incompletely treated or else torn by excess pressure. Sometimes this deviation from a straight-line motion is due to im p'erfections or Wear in the rocker 4 and its tread 3 sometimes to improper proportioning of the several parts which should coact to produce the straight \motion, and sometimes to inaccurate assembly of the several parts. In all of these cases the tool presses unevenly on the work and the results are unsatisfactory But according to the presentinvention, the work-bed can be so warped and adjusted as to compensate for these irregularities, and thereby keep the skin under steady pressure throughout the stroke: also, it can be adjusted to compensate for wear or other change in the workbed itself.

What I claim as new and desire to secure by Letters Patent of the United States, is 1. A work-bed for leather-finishing machines having a flexible bedplate, and means for permanently warping said late.

2. A work-bed for leatherishing "machines having a hard flexible bed-plate, and

means for locally depressing or raising said plate to give a firm war ed workin surface.

3. In a work-bed for eather-flnis ing machines, the combination of a base, a trunnion carried on said base, a bed resting on said trunnion, and means for rocking said bed on said trunnion.

4. In a work-bed for leather-finishing machines, the combination of a base, a trunnion carried on said base, a bed resting on said trunnion, and means for twisting said bed on said trunnion.

5. In a work-bed for leather-finishing machines, the combination of a base, means rigidly holding said base in position, a trunnion carried on said base, a bed resting on said. trunnion, and a plurality of bolts for locally til-ting said bed with respect to said base.

6. In a work-bed for leather finishing machines, a metal bed-plate, a bed supporting said plate, said bed being of flexible material and cut away along its sides, a rigid base, and means for locally adjusting the surface of said plate with respect to said base.

7. The combination of a rigid base, a lifting jack and anchoring means at each end thereof, the anchors at one end being at the sides of the base to permit tilting thereof, a trunnion running lengtlnvise of said base, a yielding bed carried on said trunnion, a plate on. said bed, and means for locally straining said bed to raise or lower portions, of said plate with. respect to said base.

8. In a leather-finishing machine, the com bination of a metal plate, a Wooden bed supporting said plate, said bed being under-cut along the sides, a rigid base, and a plurality of bolts passing through said under-cut portions and held rigid by said base.

9. The combination of a base, metal strips rigidly secured to the top of said base, a trunnion between said strips, a yielding bed supported on said trunnion, a plate on said bed, and rows of bolts holding said plate on said bed and locked to the strips on said base.

In witness whereof, I have hereunto set my hand this 15th day of August, 1908.

ARTHUR G. FILMER.

/Vitnesses A. BLOOMING-DALE, FRANCES FILMER. 

